All Stories

  1. Spectroscopy analyses of tribofilm and surface microcracks in carburized SCM420 steel under high-pressure rolling contact fatigue

    Article • Wear, July 2021, Elsevier

    Osamu Umezawa

  2. Work hardening behavior of dual phase copper–iron alloy at low temperature

    Article • Materials Science and Engineering A, July 2021, Elsevier

    Osamu Umezawa

  3. Low-temperature tensile properties of Cu-Fe laminated sheets with various number of layers

    Article • Materials Science and Engineering A, April 2021, Elsevier

    Osamu Umezawa

  4. Review of the Mechanical Properties of High-Strength Alloys at Cryogenic Temperatures

    Article • Materials Performance and Characterization, March 2021, ASTM International

    Dr Osamu Umezawa, Osamu Umezawa

  5. Role of retained austenite in low alloy steel at low temperature monitored by neutron diffraction

    Article • Scripta Materialia, March 2020, Elsevier

    Osamu Umezawa

  6. Crystal Orientation Analysis on Stress Corrosion Cracking Facets in Austenitic Stainless Steels

    Article • Key Engineering Materials, July 2019, Trans Tech Publications

    Osamu Umezawa

  7. A Subsurface Fatigue Crack Generation Model in near Alpha Titanium at Low Temperature

    Article • Materials Science Forum, December 2018, Trans Tech Publications

    Osamu Umezawa

  8. Middle Shelf During Ductile to Brittle Transition on Ferrite + Pearlite Structure Steel Sheet

    Article • Materials Science Forum, December 2018, Trans Tech Publications

    Osamu Umezawa

  9. Visualization of Strain Distribution on Deformed Steels Using Digital Image Correlation Method

    Article • Key Engineering Materials, June 2017, Trans Tech Publications

    Dr Osamu Umezawa, Osamu Umezawa

  10. Effects of Slip Ratio on Damage and Microcracks in Carburized SCM420 Steel under Rolling Contact Fatigue

    Article • Key Engineering Materials, June 2017, Trans Tech Publications

    Dr Osamu Umezawa, Osamu Umezawa

  11. Mechanical Stability and Deformation-Induced Transformation of Retained Austenite in TRIP Steels at Low Temperatures

    Article • Key Engineering Materials, June 2017, Trans Tech Publications

    Dr Osamu Umezawa, Osamu Umezawa

  12. A Review of Subsurface Crack Initiation Models in High-Cycle Fatigue for Titanium Alloys

    Article • Key Engineering Materials, June 2017, Trans Tech Publications

    Dr Osamu Umezawa, Osamu Umezawa

  13. Analyses of heterogeneous deformation and subsurface fatigue crack generation in alpha titanium alloy at low temperature

    Article • January 2014, American Institute of Physics

    Osamu Umezawa

  14. Critical experiments and analyses at cryogenic temperature to promote a better understanding of mechanical properties in high-strength alloys

    Article • January 2014, American Institute of Physics

    Osamu Umezawa

  15. New Aspects of Ecomaterials from the Viewpoints of the Consumer and Regional Communities

    Article • MATERIALS TRANSACTIONS, January 2014, Japan Institute of Metals

    Osamu Umezawa

  16. Lattice parameters and relative stability of α″ phase in binary titanium alloys from first-principles calculations

    Article • Solid State Communications, April 2013, Elsevier

    Osamu Umezawa

  17. Theoretical investigations of interstitial atoms in bcc metals: Local lattice distortion and diffusion barrier

    Article • Computational Materials Science, June 2012, Elsevier

    Osamu Umezawa

  18. Effects of alloying elements on the Snoek-type relaxation in Ti–Nb–X–O alloys (X=Al, Sn, Cr, and Mn)

    Article • Materials Science and Engineering A, April 2012, Elsevier

    Osamu Umezawa

  19. A Modeling Approach to Evaluate Grain Interaction Induced by {111}^|^lt;011^|^gt; Planar Slips in Face-centered Cubic Polycrystalline Materials

    Article • ISIJ International, January 2012, Iron and Steel Institute of Japan

    Osamu Umezawa

  20. Effects of Alloying Elements on the Oxygen Snoek-Type Relaxation in Ti-Nb Alloys

    Article • Solid State Phenomena, January 2012, Trans Tech Publications

    Osamu Umezawa

  21. PREFACE

    Article • MATERIALS TRANSACTIONS, January 2012, Japan Institute of Metals

    Osamu Umezawa

  22. Microstructural Analysis of Type 304 Metal Sleeve

    Article • Materials Science Forum, December 2011, Trans Tech Publications

    Osamu Umezawa

  23. Subjects on Fatigue Crack Generation in High Strength Alloys for Long-Life Design

    Article • Materials Science Forum, June 2011, Trans Tech Publications

    Osamu Umezawa

  24. Snoek-type damping behavior of surface oxidation-treated Ti–Mo alloys

    Article • Materials Science and Engineering A, April 2011, Elsevier

    Osamu Umezawa

  25. Effects of Fe Addition on the Snoek-Type Damping Behavior of Surface-Oxidation-Treated Ti-Mo Alloys

    Article • Metallurgical and Materials Transactions A, February 2011, Springer Science + Business Media

    Osamu Umezawa

  26. Errata: Slip deformation analysis based on full consistents model for α-type titanium alloy at low temperature [J. Jpn. Inst. Light Metals 60(2): 61-67 (2010)]

    Article • Journal of Japan Institute of Light Metals, January 2011, Japan Institute of Light Metals

    Osamu Umezawa

  27. Slip Deformation Analysis Based on Full Constraints Model for α-Titanium Alloy at Low Temperature

    Article • MATERIALS TRANSACTIONS, January 2011, Japan Institute of Metals

    Osamu Umezawa

  28. Evaluation of Subsurface Fatigue Crack Life in Forged Ti–6Al–4V Alloys at Cryogenic Temperatures

    Article • ISIJ International, January 2009, Iron and Steel Institute of Japan

    Osamu Umezawa

  29. Subsurface Fatigue Crack Generation and Strain Incompatibility Near Grain Boundaries for a Nitrogen-strengthened Austenitic Steel at Cryogenic Temperatures

    Article • ISIJ International, January 2009, Iron and Steel Institute of Japan

    Osamu Umezawa

  30. Orientation Relationship for Fine Grains Formed by Diffusion-Induced Recrystallization in the Ni(Cu) System

    Article • MATERIALS TRANSACTIONS, January 2008, Japan Institute of Metals

    Osamu Umezawa

  31. Effects of Thermo-Mechanical Treatment on the Tensile and Compressive Properties of a Glass-Balloon-Dispersed Aluminum Alloy Composite

    Article • MATERIALS TRANSACTIONS, January 2007, Japan Institute of Metals

    Osamu Umezawa

  32. Proposal of Index of Cyclic Material Use in Green Environmental Profiles

    Article • MATERIALS TRANSACTIONS, January 2007, Japan Institute of Metals

    Osamu Umezawa

  33. Mechanical Properties of Thermomechanical Treated Hyper-Eutectic Al–Si–(Fe,Mn,Cu) Materials

    Article • MATERIALS TRANSACTIONS, January 2005, Japan Institute of Metals

    Osamu Umezawa

  34. Microstructural Refinement of Hyper-Eutectic Al–Si–Fe–Mn Cast Alloys to Produce a Recyclable Wrought Material

    Article • MATERIALS TRANSACTIONS, January 2005, Japan Institute of Metals

    Osamu Umezawa

  35. Phosphorus-induced dislocation structure variation in the warm-rolled ultrafine-grained low-carbon steels

    Article • Materials Science and Engineering A, August 2003, Elsevier

    Osamu Umezawa

  36. Three-dimensional distribution, morphology, and nucleation site of intragranular ferrite formed in association with inclusions

    Article • Materials Science and Engineering A, March 2003, Elsevier

    Osamu Umezawa

  37. Application of the Kocks–Mecking model to tensile deformation of an austenitic 25Cr–19Ni steel

    Article • Acta Materialia, September 2001, Elsevier

    Osamu Umezawa

  38. Fabrication of Ni3Al thin foil by cold-rolling

    Article • Intermetallics, February 2001, Elsevier

    Osamu Umezawa